save project

my_music.py

@@ -13,14 +13,21 @@ next_img = pygame.image.load('next.png')  # 下一曲按钮
 logo_img = pygame.image.load('logo.png')  # 中间logo
 pygame.mixer.music.load('Vicetone _ Kat Nestel - Angels (Radio Edit).mp3')
 
-
+y=0.2
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+        if event.type == locals.KEYDOWN:
+            if event.key==locals.K_DOWN and y>0:
+                y-=0.1
+            if event.key == locals.K_UP and y<1:
+                y+=0.1
+    pygame.mixer.music.set_volume(y)
     if pygame.mixer.music.get_busy()==False:
         pygame.mixer.music.play()
+    
     # 绘制画面
     screen.blit(bg_img, (0, 0))      # 填充背景
     screen.blit(stop_img, (270, 330))   # 暂停按钮